Broadcast Control Platform
Chunxiao Technology · 2020
Role: Project Manager, System Designer & Android Developer

Cover
Large-scale digital signage platform with management console and Android screen clients. MQTT broadcast for campaign task distribution, device grouping, scheduled playback, and remote publishing for elevator, in-store, and public displays.
Unified ad delivery for heterogeneous public screens, efficient remote campaign management
Problem
Multiple public screen types (elevator, in-store, outdoor) need centralized ad campaign management and remote content delivery.
Solution
Multi-terminal platform: management console for campaign scheduling, MQTT broadcast for mass task distribution, Android screen clients for playback, device heartbeat monitoring, and operation audit trails.
Key Highlights
- ▸Led overall system design and project management for multi-terminal platform
- ▸Implemented MQTT broadcast for large-scale campaign task distribution
- ▸Built device grouping and campaign policy control for targeted delivery
- ▸Supported remote publishing without on-site operation
Tech Stack
What I Learned
MQTT broadcast mechanism is efficient for one-to-many device management; audit trails are essential for ad publishing compliance; remote management reduces operational costs significantly.